Improvement in steering-apparatus



waited tait/e A. A. sonniger -NYACIL NEW YORK.

Letters Ihatent No. 96,622, dated November 9, 1869.'

IMPROVEMENT IN STEERING-APPARATUS.

The Schedule referred to in .these Letters Patent and making pal-tof the same.

To all whom 'it may concern Be it known that I, A. A. SCANK, of Nyack, in the county-of Rockland, and State ot New York, have invented a new and usetnl'jlmprovemeut in Attaching Rudders to Propellers; and Ido hereby declare that the following' is a full, clear, and exact description thereof', which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of thisspecitication.

This inventionrelates to improvementsin attaching rndders to -propellers; and consists in attaching two rndders in advance of the propellers, one under each quarter, for the better protection of. the same against striking upon bars and rocks, and forinsnring a better action of the water on the rudders before it has been disturbed and set into cross-currents by the propeller, :is hereinafter more fully specified.

Figure l represents a side view of a vessel with my improved arrangement of rudders', and

Figure 2 represents a stern view of the same.

Similar letters of reference indicate corresponding parts.

Instead of arranging the rudder at the centre, in rear ofthe propeller, on a shoe running back from the heel, and on a lille therewith, whereby it is greatly exposed, in passing over bars or rocks, to strike thereon, especially when the vessel is pitching fore and aft, whereby the said 'shoes are depressed more than any other part ot' the vessel, I propose to place two rudders, 'A A, in advance ot' the propeller, one under each quarter, as elearl y represented in the drawings, on posts l, projecting vertically downward from the said quarters, and braced fore and aft by the braces C, and the other way by the braces D. rlhese posts and braces may be ofthin iron bars, thinner atthe front edges than .used, be made smaller than when one is used; consequently they are not required to set so deep in thev Water, and may terminate considerably above the keel, so that when the latter strikes. the rudder will be un-y injured.

By reason of this arrangement, they have more per `feet controlof the ship, for the water is not chopped and disturbed by the propeller, as in the old arrangement.-

They are equally as well or better protected in this way against Heating objects by the quarters 0f the ship. g

Having thus described my invention,

I claim as new, and desire to secure by Letters Patentl. The herein-described arrangement, with the hulls of' vessels driven by singleeserew propellers, of two rndders in advance ot'tbe propellers, one under each quarter, substantially as specified.

2. The arrangement ot" the rudder-posts B and braces C D with the hull, substantially as specilied.

lhe above specification of' my invention signed by me, this 20th day of September, 1869.

' A. A. SCAN'K.

Witnesses:

Gno. W. Manna, ALEX. F. ROBERTS. 

